Sen. Lindsey GrahamLindsey Olin GrahamGraham emerges as go-to ally for Biden's judicial picks This Thanksgiving, skip the political food fights and talk UFOs instead Biden move to tap oil reserves draws GOP pushback MORE (R-S.C.) on Tuesday called on President Trump to stop claiming voter fraud cost him the popular vote in the 2016 election.

Graham implored Trump to admit that there was no evidence of widespread voter fraud in his election and that those who voted did so legally.

“So I am begging the president, share with us the information you have about this or please stop saying it,” Graham said.

“As a matter of fact, I’d like you do more than stop saying it, I’d like you to come forward and say, 'Having looked at it, I am confident the election was fair and accurate and people who voted voted legally.' ‘Cause if he doesn’t do that, this is going to undermine his ability to govern this country.”

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Trump claimed in a meeting with Congressional leaders on Monday night that millions of illegal voters voted against him.

“To continue to suggest that the 2016 election was conducted in a fashion that millions of people voted illegally undermines faith in our democracy," Graham said. "It’s not coming from a candidate for the office, it’s coming from the man who holds the office.”

After winning the presidential election, Trump insisted he lost the popular vote due to “millions of people who voted illegally.” Trump has presented further no evidence for his claims, which lawmakers and experts from both parties dispute.

Democrat Hillary ClintonHillary Diane Rodham ClintonRepublicans seem set to win the midterms — unless they defeat themselves Poll: Democracy is under attack, and more violence may be the future Popping the progressive bubble MORE won the popular vote by nearly 3 million over Trump. However, Trump secured his win by claiming 304 Electoral College votes.